147
147
Feb 9, 2015
02/15
by
Samuel Buchholtz
texts
eye 147
favorite 0
comment 0
Topic: bub_upload
Source: http://books.google.com/books?id=dRQ_AAAAcAAJ&hl=&source=gbs_api
149
149
Oct 5, 2014
10/14
by
Samuel Buchholtz
texts
eye 149
favorite 0
comment 0
Topic: bub_upload
Source: http://books.google.com/books?id=BQo_AAAAcAAJ&hl=&source=gbs_api
116
116
Dec 16, 2014
12/14
by
Alexander Buchholtz
texts
eye 116
favorite 0
comment 0
Includes bibliographical references
Topics: bub_upload, Russification, Germans
Source: http://books.google.com/books?id=becsAAAAYAAJ&hl=&source=gbs_api
403
403
Oct 13, 2014
10/14
by
Samuel Buchholtz
texts
eye 403
favorite 0
comment 0
Topic: bub_upload
Source: http://books.google.com/books?id=G8kOAAAAQAAJ&hl=&source=gbs_api
"Trench Fever: A Summary from the Literature" is an article from Public Health Reports (1896-1970), Volume 34 . View more articles from Public Health Reports (1896-1970) . View this article on JSTOR . View this article's JSTOR metadata . You may also retrieve all of this items metadata in JSON at the following URL: https://archive.org/metadata/jstor-4575090
Source: http://www.jstor.org/stable/10.2307/4575090
10
10.0
Oct 23, 2017
10/17
by
Buchholtz, Stan
texts
eye 10
favorite 1
comment 0
Includes index
Topics: Acrobatics, Acrobatics, Acrobatiek
755
755
Feb 6, 2008
02/08
by
Buchholtz, Hermann
texts
eye 755
favorite 1
comment 0
Includes bibliographical references
Topics: Euripides, Greek language -- Metrics and rhythmics
85
85
Mar 26, 2007
03/07
by
Cameron Buchholtz
audio
eye 85
favorite 0
comment 0
The first episode of the Escalator Temporarily Stairs Podcast.
Topics: music, oklahoma
227
227
Feb 22, 2015
02/15
by
Samuel Buchholtz
texts
eye 227
favorite 0
comment 0
Topic: bub_upload
Source: http://books.google.com/books?id=hw4TAAAAYAAJ&hl=&source=gbs_api
146
146
Oct 8, 2014
10/14
by
Samuel Buchholtz
texts
eye 146
favorite 0
comment 0
Topic: bub_upload
Source: http://books.google.com/books?id=DQo_AAAAcAAJ&hl=&source=gbs_api
192
192
Oct 20, 2014
10/14
by
Samuel Buchholtz
texts
eye 192
favorite 0
comment 0
Topic: bub_upload
Source: http://books.google.com/books?id=Igo_AAAAcAAJ&hl=&source=gbs_api
12
12
Nov 27, 2018
11/18
by
Buchholtz, Stan
texts
eye 12
favorite 3
comment 0
xii, 224 pages : 24 cm
Topics: Acrobatics, Acrobatiek, Acrobatiek
100
100
Dec 21, 2014
12/14
by
Hermann Buchholtz
texts
eye 100
favorite 0
comment 0
Topic: bub_upload
Source: http://books.google.com/books?id=VoQCAAAAQAAJ&hl=&source=gbs_api
133
133
Oct 3, 2014
10/14
by
Samuel Buchholtz
texts
eye 133
favorite 0
comment 0
Topic: bub_upload
Source: http://books.google.com/books?id=9wk_AAAAcAAJ&hl=&source=gbs_api
76
76
Oct 3, 2014
10/14
by
Samuel Buchholtz
texts
eye 76
favorite 0
comment 0
Topic: bub_upload
Source: http://books.google.com/books?id=9tk-AAAAcAAJ&hl=&source=gbs_api
280
280
Oct 2, 2014
10/14
by
Samuel Buchholtz
texts
eye 280
favorite 0
comment 0
Topic: bub_upload
Source: http://books.google.com/books?id=9dk-AAAAcAAJ&hl=&source=gbs_api
442
442
Feb 4, 2015
02/15
by
Arend Buchholtz
texts
eye 442
favorite 0
comment 0
Topic: bub_upload
Source: http://books.google.com/books?id=ZKE_AQAAMAAJ&hl=&source=gbs_api
50
50
Jul 20, 2013
07/13
by
Volkhard Buchholtz; Thorsten Poeschel
texts
eye 50
favorite 0
comment 0
We investigate numerically the interaction of a stream of granular particles with a resting obstacle in two dimensions. For the case of high stream velocity we find that the force acting on the obstacle is proportional to the square of the stream velocity, the density and the obstacle size. This behavior is equivalent to that of non- interacting hard spheres. For low stream velocity there appears a gap in between the obstacle and the incoming stream particles which is filled with granular gas...
Source: http://arxiv.org/abs/cond-mat/9712201v2
36
36
Sep 19, 2013
09/13
by
V. Buchholtz; T. Poeschel
texts
eye 36
favorite 0
comment 0
We report on a lattice based algorithm, completely vectorized for molecular dynamics simulations. Its algorithmic complexity is of the order O(N), where $N$ is the number of particles. The algorithm works very effectively when the particles have short range interaction, but it is applicable to each kind of interaction. The code was tested on a Cray ymp el in a simulation of flowing granular material.
Source: http://arxiv.org/abs/cond-mat/9307035v2
26
26
Sep 19, 2013
09/13
by
T. Poeschel; V. Buchholtz
texts
eye 26
favorite 0
comment 0
The static as well as the dynamic behaviour of granular material are determined by dynamic {\it and} static friction. There are well known methods to include static friction in molecular dynamics simulations using scarcely understood forces. We propose an Ansatz based on the geometrical shape of nonspherical particles which does not involve an explicit expression for static friction. It is shown that the simulations based on this model are close to experimental results.
Source: http://arxiv.org/abs/hep-lat/9309006v1
31
31
Sep 19, 2013
09/13
by
V. Buchholtz; T. Pöschel
texts
eye 31
favorite 0
comment 0
We report on a lattice based algorithm, completely vectorized for molecular dynamics simulations. Its algorithmic complexity is of the order $O(N)$, where $N$ is the number of particles. The algorithm works very effectively when the particles have short range interaction, but it is applicable to each kind of interaction. The code was tested on a Cray ymp el in a simulation of flowing granular material.
Source: http://arxiv.org/abs/comp-gas/9307002v1
53
53
Sep 21, 2013
09/13
by
Volkhard Buchholtz; Thorsten Poeschel
texts
eye 53
favorite 0
comment 0
Large scale computer simulations are presented to investigate the avalanche statistics of sand piles using molecular dynamics. We could show that different methods of measurement lead to contradicting conclusions, presumably due to avalanches not reaching the end of the experimental table.
Source: http://arxiv.org/abs/cond-mat/0203438v1
24
24
Sep 21, 2013
09/13
by
Volkhard Buchholtz; Thorsten Poeschel
texts
eye 24
favorite 0
comment 0
We discuss a new optimization strategy, which considerably improves the effectivity of evolutionary algorithms applied to a certain class of optimization problems. The basic principle is to solve first a simpler related problem, which is constructed by introducing additional degrees of freedom to the landscape. Starting from the solution in this simplified landscape we remove stepwise the added degrees of freedom. Our optimization strategy is demonstrated for a sample problem.
Source: http://arxiv.org/abs/cond-mat/0203412v1
Thesis (doctoral)--Copenhagen, 1915
25
25
Sep 9, 2016
09/16
by
Buchholtz, Alexander August von
texts
eye 25
favorite 0
comment 0
Topic: bub_upload
Source: http://books.google.com/books?id=zlxDAAAAcAAJ&hl=&source=gbs_api
216
216
Aug 4, 2016
08/16
by
Alexander-August von Buchholtz
texts
eye 216
favorite 0
comment 0
Topic: bub_upload
Source: http://books.google.com/books?id=Mr5LAAAAcAAJ&hl=&source=gbs_api
32
32
Sep 21, 2013
09/13
by
Thorsten Poeschel; Volkhard Buchholtz
texts
eye 32
favorite 0
comment 0
We propose a new model for the description of complex granular particles and their interaction in molecular dynamics simulations of granular material in two dimensions. The grains are composed of triangles which are connected by deformable beams. Particles are allowed to be convex or concave. We present first results of simulations using this particle model.
Source: http://arxiv.org/abs/cond-mat/0203587v1
0
0.0
Jun 29, 2018
06/18
by
Ulrik Buchholtz; Egbert Rijke
texts
eye 0
favorite 0
comment 0
We define in the setting of homotopy type theory an H-space structure on $\mathbb S^3$. Hence we obtain a description of the quaternionic Hopf fibration $\mathbb S^3\hookrightarrow\mathbb S^7\twoheadrightarrow\mathbb S^4$, using only homotopy invariant tools.
Topics: Mathematics, Category Theory, Logic in Computer Science, Logic, Algebraic Topology, Computing...
Source: http://arxiv.org/abs/1610.01134
0
0.0
Jun 30, 2018
06/18
by
Ulrik Buchholtz; Egbert Rijke
texts
eye 0
favorite 0
comment 0
Homotopy type theory is a version of Martin-L\"of type theory taking advantage of its homotopical models. In particular, we can use and construct objects of homotopy theory and reason about them using higher inductive types. In this article, we construct the real projective spaces, key players in homotopy theory, as certain higher inductive types in homotopy type theory. The classical definition of RP(n), as the quotient space identifying antipodal points of the n-sphere, does not...
Topics: Algebraic Topology, Mathematics
Source: http://arxiv.org/abs/1704.05770
33
33
Sep 19, 2013
09/13
by
Volkhard Buchholtz; Thorsten Poeschel
texts
eye 33
favorite 0
comment 0
The evolution of a pile of granular material is investigated by molecular dynamics using a new model including nonsphericity of the particles instead of introducing static friction terms. The angle of repose of the piles as well as the avalanche statistics gathered by the simulation agree with experimental results. The angle of repose of the pile is determined by the shape of the grains. Our results are compared with simulations using spherical grains and static friction.
Source: http://arxiv.org/abs/cond-mat/9309032v1
40
40
Sep 20, 2013
09/13
by
Thorsten Poeschel; Volkhard Buchholtz
texts
eye 40
favorite 0
comment 0
We propose a new model for the description of complex granular particles and their interaction in molecular dynamics simulations of granular material in two dimensions. The grains are composed of triangles which are connected by deformable beams. Particles are allowed to be convex or concave. We present first results of simulations using this particle model.
Source: http://arxiv.org/abs/adap-org/9507010v1
128
128
Aug 7, 2016
08/16
by
Buchholtz, Alexander August von
texts
eye 128
favorite 0
comment 0
Topic: bub_upload
Source: http://books.google.com/books?id=oBs4JGlLAA4C&hl=&source=gbs_api
126
126
Jul 25, 2016
07/16
by
Buchholtz, Alexander August von
texts
eye 126
favorite 0
comment 0
Topics: bub_upload, Inheritance and succession (Roman law), Wills (Roman law)
Source: http://books.google.com/books?id=Gi5RAAAAcAAJ&hl=&source=gbs_api
41
41
Sep 20, 2013
09/13
by
Thorsten Poeschel; Volkhard Buchholtz
texts
eye 41
favorite 0
comment 0
The flow of granular material in a rotating cylinder was simulated by molecular dynamics in two dimensions using spherical as well as nonspherical grains. At very low but constant angular velocity we found that the flow varies irregularly with time. The particles move stick-slip like i.e. there are avalanches of different size at the surface of the granular material. Observing the traces of the particles we found that there are unstable convection cells. Our results agree with recent...
Source: http://arxiv.org/abs/cond-mat/0204138v1
1
1.0
Jun 30, 2018
06/18
by
Ulrik Buchholtz; Edward Morehouse
texts
eye 1
favorite 0
comment 0
We define a variety of notions of cubical sets, based on sites organized using substructural algebraic theories presenting PRO(P)s or Lawvere theories. We prove that all our sites are test categories in the sense of Grothendieck, meaning that the corresponding presheaf categories of cubical sets model classical homotopy theory. We delineate exactly which ones are even strict test categories, meaning that products of cubical sets correspond to products of homotopy types.
Topics: Algebraic Topology, Mathematics, Category Theory, Computing Research Repository, Logic in Computer...
Source: http://arxiv.org/abs/1701.08189
31
31
Sep 20, 2013
09/13
by
Volkhard Buchholtz; Thorsten Poeschel
texts
eye 31
favorite 0
comment 0
The motion of granular material in a ball mill is investigated using molecular dynamics simulations in two dimensions. In agreement with experimental observations by Rothkegel [1] we find that local stresses - and hence the comminution efficiency - are maximal close to the bottom of the container. This effect will be explained using analysis of statistics of force chains in the material.
Source: http://arxiv.org/abs/cond-mat/0204075v1
96
96
Jul 19, 2016
07/16
by
Buchholtz, Alexander August von
texts
eye 96
favorite 0
comment 0
Topic: bub_upload
Source: http://books.google.com/books?id=ClUUAAAAQAAJ&hl=&source=gbs_api
41
41
Aug 12, 2010
08/10
by
Buchholtz, C. W
texts
eye 41
favorite 0
comment 0
11
11
Mar 18, 2013
03/13
by
Buchholtz, C. W
texts
eye 11
favorite 0
comment 0
Bibliography: p. [239]-244
Topic: Rocky Mountain National Park (Colo.) -- History.
62
62
Oct 12, 2017
10/17
by
Buchholtz, Arend, 1857-1938. n 84805418
texts
eye 62
favorite 0
comment 0
Includes index
Topics: Bergmann, Ernst von, 1836-1907, Physicians, Physicians, Physicians
Topic: Recreational Reading
45
45
Sep 21, 2013
09/13
by
Volkhard Buchholtz; Jan A. Freund; Thorsten Poeschel
texts
eye 45
favorite 0
comment 0
We investigate autogenous fragmentation of dry granular material in rotating cylinders using two-dimensional molecular dynamics. By evaluation of spatial force distributions achieved numerically for various rotation velocities we argue that comminution occurs mainly due to the existence of force chains. A statistical analysis of theses force chains explains the spatial distribution of comminution efficiency in ball mills as measured experimentally by Rothkegel and Rolf. For animated sequences...
Source: http://arxiv.org/abs/cond-mat/0203372v1
53
53
May 30, 2012
05/12
by
Carroll, Archie B; Buchholtz, Ann K
texts
eye 53
favorite 0
comment 0
Includes bibliographical references (p. 681-685) and indexes
Topics: Business ethics, Social responsibility of business
33
33
Sep 21, 2013
09/13
by
Volkhard Buchholtz; Thorsten Poeschel; Hans-Juergen Tillemans
texts
eye 33
favorite 0
comment 0
We investigate the flow of granular material in a rotating cylinder numerically using molecular dynamics in two dimensions. The particles are described by a new model which allows to simulate geometrically complicated shaped grains. The results of the simulation agree significantly better with experiments than the results which are based on circular particles.
Source: http://arxiv.org/abs/cond-mat/0203589v1
California Digital Library
758
758
Feb 7, 2008
02/08
by
Buchholtz, Johannes, 1882-1940; Worster, W. W
texts
eye 758
favorite 0
comment 0
6
6.0
Aug 1, 2018
08/18
by
Johannes Buchholtz; W. J. Alexander (William John Alexander) Worster
texts
eye 6
favorite 0
comment 0
Book from Project Gutenberg: Egholm and his God
Topics: PT, Danish fiction -- Translations into English
Source: https://www.gutenberg.org/ebooks/46913
33
33
Sep 23, 2013
09/13
by
L. J. Buchholtz; Mario Palumbo; D. Rainer; J. A. Sauls
texts
eye 33
favorite 0
comment 0
We present calculations of the tunneling density of states in an anisotropically paired superconductor for two different sample geometries: a semi-infinite system with a single specular wall, and a slab of finite thickness and infinite lateral extent. In both cases we are interested in the effects of surface pair breaking on the tunneling spectrum. We take the stable bulk phase to be of $d_{x^2-y^2}$ symmetry. Our calculations are performed within two different band structure environments: an...
Source: http://arxiv.org/abs/cond-mat/9511028v1
6
6.0
Jun 30, 2018
06/18
by
Ulrik Buchholtz; Floris van Doorn; Jakob von Raumer
texts
eye 6
favorite 0
comment 0
We discuss the homotopy type theory library in the Lean proof assistant. The library is especially geared toward synthetic homotopy theory. Of particular interest is the use of just a few primitive notions of higher inductive types, namely quotients and truncations, and the use of cubical methods.
Topics: Logic in Computer Science, Mathematics, Computing Research Repository, Logic
Source: http://arxiv.org/abs/1704.06781
32
32
Sep 21, 2013
09/13
by
Michael A. Scherer; Volkhard Buchholtz; Thorsten Poeschel; Ingo Rehberg
texts
eye 32
favorite 0
comment 0
A novel effect in a granular material under swirling motion of the container is presented. At low packing densities the material rotates in the same direction as the swirling motion of the container (rotation). At higher densities the cluster of granular material rotates in opposite direction (reptation). The change of the direction of the motion of the cluster takes place at a critical packing density while the diffusion coefficient changes significantly. The measured critical density of the...
Source: http://arxiv.org/abs/cond-mat/0203437v1
129
129
Feb 10, 2015
02/15
by
Buchholtz, Alexander August von, 1800-1856. [from old catalog]
texts
eye 129
favorite 0
comment 0
Topics: bub_upload, Roman law
Source: http://books.google.com/books?id=e5NDAAAAcAAJ&hl=&source=gbs_api
